mirror of https://github.com/python/cpython.git
114 lines
2.9 KiB
Python
114 lines
2.9 KiB
Python
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# Generic Split implementation.
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# Use as a base class for other splits.
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Error = 'Split.Error' # Exception
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import rect
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from util import remove
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class Split():
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#
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# Calls from creator
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# NB derived classes may add parameters to create()
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#
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def create(self, parent):
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parent.addchild(self)
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self.parent = parent
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self.children = []
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self.mouse_interest = []
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self.timer_interest = []
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self.mouse_focus = 0
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return self
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#
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# Downcalls from parent to child
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#
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def destroy(self):
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self.parent = 0
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for child in self.children:
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child.destroy()
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self.children[:] = []
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self.mouse_interest[:] = []
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self.timer_interest[:] = []
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self.mouse_focus = 0
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#
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def minsize(self, m): return unimpl()
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def getbounds(self): return unimpl()
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def setbounds(self, bounds): unimpl()
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def draw(self, args):
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# (Could avoid calls to children outside the area)
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for child in self.children:
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child.draw(args)
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#
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# Downcalls only made after certain upcalls
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#
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def mouse_down(self, detail):
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if self.mouse_focus:
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self.mouse_focus.mouse_down(detail)
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p = detail[0]
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for child in self.mouse_interest:
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if rect.pointinrect(p, child.getbounds()):
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self.mouse_focus = child
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child.mouse_down(detail)
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def mouse_move(self, detail):
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if self.mouse_focus:
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self.mouse_focus.mouse_move(detail)
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def mouse_up(self, detail):
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if self.mouse_focus:
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self.mouse_focus.mouse_up(detail)
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self.mouse_focus = 0
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#
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def timer(self):
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for child in self.timer_interest:
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child.timer()
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#
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# Upcalls from child to parent
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#
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def addchild(self, child):
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if child in self.children:
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raise Error, 'addchild: child already inlist'
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self.children.append(child)
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def delchild(self, child):
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if child not in self.children:
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raise Error, 'delchild: child not in list'
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remove(child, self.children)
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if child in self.mouse_interest:
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remove(child, self.mouse_interest)
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if child in self.timer_interest:
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remove(child, self.timer_interest)
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if child = self.mouse_focus:
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self.mouse_focus = 0
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#
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def need_mouse(self, child):
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if child not in self.mouse_interest:
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self.mouse_interest.append(child)
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self.parent.need_mouse(self)
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def no_mouse(self, child):
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if child in self.mouse_interest:
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remove(child, self.mouse_interest)
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if not self.mouse_interest:
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self.parent.no_mouse(self)
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#
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def need_timer(self, child):
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if child not in self.timer_interest:
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self.timer_interest.append(child)
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self.parent.need_timer(self)
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def no_timer(self, child):
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if child in self.timer_interest:
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remove(child, self.timer_interest)
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if not self.timer_interest:
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self.parent.no_timer(self)
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#
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# The rest are transparent:
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#
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def begindrawing(self):
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return self.parent.begindrawing()
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def beginmeasuring(self):
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return self.parent.beginmeasuring()
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#
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def change(self, area):
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self.parent.change(area)
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def scroll(self, args):
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self.parent.scroll(args)
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def settimer(self, itimer):
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self.parent.settimer(itimer)
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